throttle body spacers - Pirate4x4.Com : 4x4 and Off-Road Forum

burbanbeast · 08-07-2006, 04:30 PM

are they good or bad? and if theyr good what kind should i go with?

93Blazer4x4 · 08-07-2006, 07:18 PM

I found Throttle Body Spacers work well with TBI Units where the fuel and air is mixed going through the Intake Manifold... Throttle Body Spacers only work marginally on CPI and MPFI where only air is going through the Intake Manifold

Cam73 · 08-07-2006, 08:08 PM

I thought it helped in my 87 1/2 ton. I bought a cheap knock off from ebay, the only thing it didn't do was whistle(as much) like the helix. I also installed an injector spacer and adjustable fuel pressure regulator at the same time. I suggest using the fuel line extentions and a fuel pressure gauge to make install/tuning less difficult.

There is a fuel pressure regulator that is a marine part and is vacuum referenced unlike the other aftermarket ones. it requires you to drill a hole for a vacuum port but people really seem to like it.

burbanbeast · 08-07-2006, 08:35 PM

so when i put the spacerin im absolutely goin to need fuel line extensions??

Cam73 · 08-07-2006, 08:42 PM

No, it can be done with out but they are cheap and if they send you the right ones, unlike me, its better then trying to bend hardlines in a tight spot. I think there was a bracket I loosened or removed to get some more length. I ended up reconnecting the lines then installing the TB on the manifold.

burbanbeast · 08-07-2006, 09:02 PM

ahhh gotcha the ones im lookin at r wide open bore and the one with two holes. now i plan on doin alot of muddin and was wonderin if the wide open would b better for my conditions?

Cam73 · 08-07-2006, 09:33 PM

To be honest, I have no idea. What year is this going on?

This is something like the one I got.
http://cgi.ebay.com/ebaymotors/CHEVY...QQcmdZViewItem

burbanbeast · 08-08-2006, 03:54 AM

its an 89 gmc suburban

Cactusjack · 08-10-2006, 08:21 PM

I put an Airraid on my '89 K3500 w/454, didn't need extensions as the fuel lines are of the braided variety from the factory, and plenty long enough. Did notice an increase in performance though.

08-07-2006, 04:30 PM	#1 (permalink)
burbanbeast Registered User Join Date: Dec 2005 Member # 63741 Location: Collierville TN Posts: 242	throttle body spacers are they good or bad? and if theyr good what kind should i go with?

08-07-2006, 07:18 PM	#2 (permalink)
93Blazer4x4 Registered User Join Date: Nov 2005 Member # 57757 Location: Florida Posts: 40	I found Throttle Body Spacers work well with TBI Units where the fuel and air is mixed going through the Intake Manifold... Throttle Body Spacers only work marginally on CPI and MPFI where only air is going through the Intake Manifold __________________ 1993 GMC Jimmy 4x4- The Toy- Rebuilt 4.3 Vortec Bored .30 over... K&N Air Filter... Flowmaster Muffler... Lift Kit In The Works Or Possible Solid Axle Swap! 1987 Chevy Monte Carlo SS- The Drag Car 1987 Buick Regal Limited- The Daily Driver

08-07-2006, 08:08 PM	#3 (permalink)
Cam73 Registered User Join Date: Nov 2003 Member # 24246 Posts: 16	I thought it helped in my 87 1/2 ton. I bought a cheap knock off from ebay, the only thing it didn't do was whistle(as much) like the helix. I also installed an injector spacer and adjustable fuel pressure regulator at the same time. I suggest using the fuel line extentions and a fuel pressure gauge to make install/tuning less difficult. There is a fuel pressure regulator that is a marine part and is vacuum referenced unlike the other aftermarket ones. it requires you to drill a hole for a vacuum port but people really seem to like it. __________________ 1997 Dodge 2500 CTD 5 speed- #100 plate, 4KGSK, 6" Miters, 13" ValAir OFE, DSS

08-07-2006, 08:42 PM	#5 (permalink)
Cam73 Registered User Join Date: Nov 2003 Member # 24246 Posts: 16	No, it can be done with out but they are cheap and if they send you the right ones, unlike me, its better then trying to bend hardlines in a tight spot. I think there was a bracket I loosened or removed to get some more length. I ended up reconnecting the lines then installing the TB on the manifold. __________________ 1997 Dodge 2500 CTD 5 speed- #100 plate, 4KGSK, 6" Miters, 13" ValAir OFE, DSS

08-07-2006, 09:33 PM	#7 (permalink)
Cam73 Registered User Join Date: Nov 2003 Member # 24246 Posts: 16	To be honest, I have no idea. What year is this going on? This is something like the one I got. http://cgi.ebay.com/ebaymotors/CHEVY...QQcmdZViewItem __________________ 1997 Dodge 2500 CTD 5 speed- #100 plate, 4KGSK, 6" Miters, 13" ValAir OFE, DSS

08-07-2006, 08:35 PM	#4 (permalink)
burbanbeast Registered User Join Date: Dec 2005 Member # 63741 Location: Collierville TN Posts: 242	so when i put the spacerin im absolutely goin to need fuel line extensions??

08-07-2006, 09:02 PM	#6 (permalink)
burbanbeast Registered User Join Date: Dec 2005 Member # 63741 Location: Collierville TN Posts: 242	ahhh gotcha the ones im lookin at r wide open bore and the one with two holes. now i plan on doin alot of muddin and was wonderin if the wide open would b better for my conditions?

08-08-2006, 03:54 AM	#8 (permalink)
burbanbeast Registered User Join Date: Dec 2005 Member # 63741 Location: Collierville TN Posts: 242	its an 89 gmc suburban

08-10-2006, 08:21 PM	#9 (permalink)
Cactusjack Registered User Join Date: Apr 2006 Member # 70846 Location: Higley, AZ Posts: 16	I put an Airraid on my '89 K3500 w/454, didn't need extensions as the fuel lines are of the braided variety from the factory, and plenty long enough. Did notice an increase in performance though. __________________ '89 K3500

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